tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __PERF_CPUMAP_H
2#define __PERF_CPUMAP_H
3
4#include <stdio.h>
5#include <stdbool.h>
6#include <linux/atomic.h>
7
8#include "perf.h"
9#include "util/debug.h"
10
11struct cpu_map {
12 atomic_t refcnt;
13 int nr;
14 int map[];
15};
16
17struct cpu_map *cpu_map__new(const char *cpu_list);
18struct cpu_map *cpu_map__empty_new(int nr);
19struct cpu_map *cpu_map__dummy_new(void);
20struct cpu_map *cpu_map__read(FILE *file);
21size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
22int cpu_map__get_socket_id(int cpu);
23int cpu_map__get_socket(struct cpu_map *map, int idx, void *data);
24int cpu_map__get_core_id(int cpu);
25int cpu_map__get_core(struct cpu_map *map, int idx, void *data);
26int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
27int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
28
29struct cpu_map *cpu_map__get(struct cpu_map *map);
30void cpu_map__put(struct cpu_map *map);
31
32static inline int cpu_map__socket(struct cpu_map *sock, int s)
33{
34 if (!sock || s > sock->nr || s < 0)
35 return 0;
36 return sock->map[s];
37}
38
39static inline int cpu_map__id_to_socket(int id)
40{
41 return id >> 16;
42}
43
44static inline int cpu_map__id_to_cpu(int id)
45{
46 return id & 0xffff;
47}
48
49static inline int cpu_map__nr(const struct cpu_map *map)
50{
51 return map ? map->nr : 1;
52}
53
54static inline bool cpu_map__empty(const struct cpu_map *map)
55{
56 return map ? map->map[0] == -1 : true;
57}
58
59int max_cpu_num;
60int max_node_num;
61int *cpunode_map;
62
63int cpu__setup_cpunode_map(void);
64
65static inline int cpu__max_node(void)
66{
67 if (unlikely(!max_node_num))
68 pr_debug("cpu_map not initialized\n");
69
70 return max_node_num;
71}
72
73static inline int cpu__max_cpu(void)
74{
75 if (unlikely(!max_cpu_num))
76 pr_debug("cpu_map not initialized\n");
77
78 return max_cpu_num;
79}
80
81static inline int cpu__get_node(int cpu)
82{
83 if (unlikely(cpunode_map == NULL)) {
84 pr_debug("cpu_map not initialized\n");
85 return -1;
86 }
87
88 return cpunode_map[cpu];
89}
90
91int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
92 int (*f)(struct cpu_map *map, int cpu, void *data),
93 void *data);
94#endif /* __PERF_CPUMAP_H */